Packet Pad lets you view Packet Radio transmissions on your iPad, iPhone and iPod Touch. Just set it next to your radio, tune in a Packet frequency, and watch the decodes. Or for even better quality decodes, connect a patch cable from your radios audio output to the microphone jack, or a USB sound device plugged into the USB-C port of your device. Raw APRS (Automatic Packet Reporting System) packets are also displayed. You can also save your received text to view later, or transfer to your computer via iTunes. Note: Only 1200 baud packet is decoded. The app is receive only, packets are not transmitted.